EFFECT AND OPTIMIZATION OF MACHINING PARAMETERS ON CUTTING FORCE AND SURFACE FINISH IN TURNING OF MILD STEEL AND ALUMINUM

BalaRaju J, Leela Krishna J, Tejomurthy P

Abstract: Productivity and the quality of the machined parts are the main challenges of metal cutting industry during turning process. Therefore cutting parameters must be chosen and optimize in such a way that the required surface quality can be controlled. Hence statistical design of experiments (DOE) and statistical/mathematical model are used extensively for optimize. The present investigation was carried out for effect of cutting parameters (cutting speed, depth of cut and feed) In turning off mild steel and aluminum to achieve better surface finish and to reduce power requirement by reducing the cutting forces involved in machining. The experimental layout was designed based on the 2^k factorial techniques and analysis of variance (ANOVA) was performed to identify the effect of cutting parameters on surface finish and cutting forces are developed by using multiple regression analysis. The coefficients were calculated by using regression analysis and the model is constructed. The model is tested for its adequacy by using 95% confidence level. By using the mathematical model the main and interaction effects of various process parameters on turning was studied.

Keywords: Universal Lathe, Surface Finish, Cutting Force, High Speed Steel Tool, Factorial Technique.

DOI: https://doi.org/10.15623/ijret.2013.0211021